We carry two units of O Negative pRBC's on all flights where the potential to transfuse is present (all traumas, aortic aneuryxms/dissections, etc). We have protocols in place to begin transfusing in the setting on on-going hemorrhagic shock after the infusion of two liters of crystalloid.
We currently do not have pericardiocentesis in our skill set. We have talked about it for the setting of traumatic cardiac arrest. But no protocol as of right now!